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Table 1

Overview of data sets used.

Tel. Freq. Config. Pixel scale Beam size
[MHz] [′′/pix.] [arcsec2]

MERLIN 151 0.5 3.00 × 3.00
VLA 327 A 0.5 2.50 × 2.50
1345 ABCD 0.3 1.40 × 1.32
4525 ABCD 0.125 0.40 × 0.40
8515 ABCD 0.05 0.25 × 0.21
14655 ABCD 0.125 0.35 × 0.35
43340 ABC 0.013 0.07 × 0.06

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